Home / 19,684.96-27,158.43-12,615.28

Finding the Fourth Proportional to 19,684.96, 27,158.43 and 12,615.28

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Solution

The fourth proportional to 19,684.96, 27,158.43 and 12,615.28 is: 17,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,684.96 : 27,158.43 = 12,615.28 : x
  2. Step 2: Convert to fraction form
    19,684.96/27,158.43 = 12,615.28/x
  3. Step 3: Cross multiply
    19,684.96x = 27,158.43 × 12,615.28
  4. Step 4: Simplify right side
    19,684.96x = 342,611,198.81
  5. Step 5: Solve for x
    x = 342,611,198.81/19,684.96
  6. Step 6: Final answer
    x = 17,404.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.